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CN103578504A - 用于在存在磁带运动的情况下优化偏斜的方法和设备 - Google Patents

用于在存在磁带运动的情况下优化偏斜的方法和设备 Download PDF

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Publication number
CN103578504A
CN103578504A CN 201310323689 CN201310323689A CN103578504A CN 103578504 A CN103578504 A CN 103578504A CN 201310323689 CN201310323689 CN 201310323689 CN 201310323689 A CN201310323689 A CN 201310323689A CN 103578504 A CN103578504 A CN 103578504A
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CN
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Patent type
Prior art keywords
skew
method
tape
reading
point
Prior art date
Application number
CN 201310323689
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English (en)
Chinese (zh)
Other versions
CN103578504B (zh )
Inventor
R·C·印驰
K·B·贾德
Original Assignee
国际商业机器公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10305Improvement or modification of read or write signals signal quality assessment
    • G11B20/10388Improvement or modification of read or write signals signal quality assessment control of the read or write heads, e.g. tracking errors, defocus or tilt compensation
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/90Tape-like record carriers
    • G11B2220/95Serpentine format, wherein a single track or group of tracks traverses the tape plural times from one end to the other
    • G11B2220/956Linear tape open [LTO] format
CN 201310323689 2012-07-30 2013-07-30 用于在存在磁带运动的情况下产生偏斜误差信号的方法和设备 CN103578504B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/562,290 2012-07-30
US13562290 US8810956B2 (en) 2012-07-30 2012-07-30 Technique for optimizing skew in the presence of tape motion

Publications (2)

Publication Number Publication Date
CN103578504A true true CN103578504A (zh) 2014-02-12
CN103578504B CN103578504B (zh) 2016-05-11

Family

ID=49994643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201310323689 CN103578504B (zh) 2012-07-30 2013-07-30 用于在存在磁带运动的情况下产生偏斜误差信号的方法和设备

Country Status (2)

Country Link
US (1) US8810956B2 (fr)
CN (1) CN103578504B (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800280A (en) * 1972-11-06 1974-03-26 Gte Automatic Electric Lab Inc Time skew measurement circuit for mag tape transports
WO1995034887A1 (fr) * 1994-06-10 1995-12-21 Exabyte Corporation Correction de desalignement pour enregistreur/lecteur de bande multipiste
US20060103968A1 (en) * 2004-11-12 2006-05-18 Jurneke Joe K Dynamic skew compensation systems and associated methods
US7538966B2 (en) * 2007-10-12 2009-05-26 Quantum Corporation Read/write head azimuth determination via servo band signal information
US7764460B2 (en) * 2008-09-17 2010-07-27 International Business Machines Corporation Adjusting read heads based on misregistration calculated from servo patterns
US20100246043A1 (en) * 2009-03-30 2010-09-30 Barsotti Matt Measuring reader/writer offset in a tape drive head
US7957088B1 (en) * 2010-03-02 2011-06-07 International Business Machines Corporation Track compensation and skew compensation for drives having flangeless rollers and systems thereof
WO2011077340A1 (fr) * 2009-12-21 2011-06-30 International Business Machines Corporation Procédé et appareil pour exploiter un dispositif de stockage
US8054576B2 (en) * 2010-02-17 2011-11-08 International Business Machines Corporation Skew actuator to servo track zero reference

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414587A (en) * 1981-12-17 1983-11-08 Sri International Skew sensing for digital tape playback
JPS62195750A (en) 1986-02-20 1987-08-28 Fujitsu Ltd Skew correction system
US6781784B2 (en) * 2001-04-13 2004-08-24 Storage Technology Corporation Reading tape with transverse distortion
US6906888B1 (en) 2002-05-20 2005-06-14 Storage Technology Corporation Method for write track placement correction
US7492545B1 (en) * 2003-03-10 2009-02-17 Marvell International Ltd. Method and system for automatic time base adjustment for disk drive servo controllers
US7660069B2 (en) 2008-04-29 2010-02-09 Sun Microsystems, Inc. Technique for signal and transducer alignment in a tape drive

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800280A (en) * 1972-11-06 1974-03-26 Gte Automatic Electric Lab Inc Time skew measurement circuit for mag tape transports
WO1995034887A1 (fr) * 1994-06-10 1995-12-21 Exabyte Corporation Correction de desalignement pour enregistreur/lecteur de bande multipiste
US20060103968A1 (en) * 2004-11-12 2006-05-18 Jurneke Joe K Dynamic skew compensation systems and associated methods
US7538966B2 (en) * 2007-10-12 2009-05-26 Quantum Corporation Read/write head azimuth determination via servo band signal information
US7764460B2 (en) * 2008-09-17 2010-07-27 International Business Machines Corporation Adjusting read heads based on misregistration calculated from servo patterns
US20100246043A1 (en) * 2009-03-30 2010-09-30 Barsotti Matt Measuring reader/writer offset in a tape drive head
WO2011077340A1 (fr) * 2009-12-21 2011-06-30 International Business Machines Corporation Procédé et appareil pour exploiter un dispositif de stockage
US8054576B2 (en) * 2010-02-17 2011-11-08 International Business Machines Corporation Skew actuator to servo track zero reference
US7957088B1 (en) * 2010-03-02 2011-06-07 International Business Machines Corporation Track compensation and skew compensation for drives having flangeless rollers and systems thereof

Also Published As

Publication number Publication date Type
CN103578504B (zh) 2016-05-11 grant
US8810956B2 (en) 2014-08-19 grant
US20140029125A1 (en) 2014-01-30 application

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